Results 31 to 40 of about 28,558 (248)

The Mystery of the Ramsey Fringe that Didn't Chirp [PDF]

, 2002
We use precision microwave spectroscopy of magnetically trapped, ultra-cold 87Rb to characterize intra- and inter-state density correlations. The cold collision shifts for both normal and condensed clouds are measured.
Cornell, E. A., Harber, D. M., Lewandowski, H. J., McGuirk, J. M.   +3 more
core   +6 more sources

Decoupling Size and Electronic Effects in Doped SrTiO3 Photocatalysts Through Surface Area–Normalized CO2 Hydrogenation Rates

Advanced Functional Materials, EarlyView.
Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya, Baliana Shani, Isaac Holmes‐Gentle, Gerardo T Martinez, Martyn McLachlan, Nicola Seriani, Ludmilla Steier   +6 more
wiley   +1 more source

Mechanical Properties of Architected Polymer Lattice Materials: A Comparative Study of Additive Manufacturing and CAD Using FEM and µ‐CT

Advanced Functional Materials, EarlyView.
This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker, Thierry Roland, Damien Favier, Antoine Egele, Michael Heymann, Cosima Stubenrauch   +5 more
wiley   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Interplay between Zeeman Coupling and Swap Action in Spin-based Quantum Computer Models: Error Correction in Inhomogeneous Magnetic Fields

, 2000
We consider theoretically the interplay between Zeeman coupling and exchange-induced swap action in spin-based quantum dot quantum computer models in the presence of inhomogeneous magnetic fields, which are invariably present in real systems. We estimate
A. Ekert, A. Imamoglu, A. Shnirman, A. Steane, A. Steane, B. E. Kane, C. H. Bennett, C. Monroe, C. P. Slichter, D. Bacon, D. G. Cory, D. Loss, D. P. DiVincenzo, F. Yamaguchi, G. Burkard, G. Burkard, J. I. Cirac, N. A. Gershenfeld, P. Shor, Q. A. Turchette, R. Vrijen, Rogerio de Sousa, S. Das Sarma, T. Sleator, X. Hu, Xuedong Hu   +25 more
core   +1 more source

Propagation of gaseous detonation waves in a spatially inhomogeneous reactive medium [PDF]

, 2017
Detonation propagation in a compressible medium wherein the energy release has been made spatially inhomogeneous is examined via numerical simulation. The inhomogeneity is introduced via step functions in the reaction progress variable, with the local ...
Higgins, Andrew J., Kiyanda, Charles B., Mi, XiaoCheng, Ng, Hoi Dick, Nikiforakis, Nikolaos   +4 more
core   +2 more sources

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

Advanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng, Xinxin Wang, Ruochao Zhao, Zhendong Li, Kai Liu, Ke Yuan, Jia An, Xinwei Li, Chee Kai Chua, Zhonggang Wang   +9 more
wiley   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source

Restoration of the cantilever bowing distortion in Atomic Force Microscopy [PDF]

, 2008
Due to the mechanics of the Atomic Force Microscope (AFM), there is a curvature distortion (bowing effect) present in the acquired images. At present, flattening such images requires human intervention to manually segment object data from the background,
Katsaggelos, Aggelos K., Tsaftaris, Sotirios A., Zujovic, Jana   +2 more
core  

Statistical mechanics characterization of spatio-compositional inhomogeneity

, 2009
On the basis of a model system of pillars built of unit cubes, a two-component entropic measure for the multiscale analysis of spatio-compositional inhomogeneity is proposed.
Alemaskin, Beck, Cheng, Costa, Evans, Herna’ndez Herrejo’n, Jiao, Karimipour, Koza, Kulp, Lifshitz, Liu, Malarz, Oliveira, Petroni, Piasecki, Piasecki, Piasecki, Piasecki, Piasecki, Rucklidge, Rucklidge, Ryszard Piasecki, Stanley, Torquato, Torquato, Tsallis, Vilenkin, Wang, Wang, Wilk, Yeong, Zunino   +32 more
core   +1 more source